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分别以十二烷基苯磺酸钠、十八烷基三甲基溴化铵及两者的复配体系为分散剂对多壁碳纳米管进行非共价功能化处理,并考察了它们对多壁碳纳米管的分散能力。TG、FT-IR、UV-Vis吸收光谱和TEM分析结果表明,表面活性剂分子已成功吸附在多壁碳纳米管表面且复配体系对多壁碳纳米管的分散能力高于单一表面活性剂。另外,以金黄色葡萄球菌为实验菌种,通过考察功能化多壁碳纳米管悬浮液处理该菌2h后的光密度生长曲线和平板计数结果可知,复配体系功能化的多壁碳纳米管具有良好的抗菌活性。
The multi-walled carbon nanotubes were non-covalently functionalized with sodium dodecyl benzene sulfonate, octadecyl trimethyl ammonium bromide and their complexing systems as dispersants, respectively. Their effects on Multi-wall carbon nanotube dispersion ability. TG, FT-IR, UV-Vis absorption spectra and TEM results show that the surfactant molecules have been successfully adsorbed on the surface of multi-walled carbon nanotubes and the dispersibility of multi-walled carbon nanotubes is higher than that of single surfactant . In addition, Staphylococcus aureus as experimental species, through the study of functionalized multi-walled carbon nanotube suspension treatment of the bacteria after 2h optical density growth curve and plate count results show that the complex system of functionalized multi-walled carbon nanotubes Has good antibacterial activity.